216230352 has 80 divisors (see below), whose sum is σ = 604961280. Its totient is φ = 66157056.

The previous prime is 216230341. The next prime is 216230353. The reversal of 216230352 is 253032612.

216230352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216230353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122049 + ... + 123807.

It is an arithmetic number, because the mean of its divisors is an integer number (7562016).

Almost surely, 2^216230352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216230352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302480640).

216230352 is an abundant number, since it is smaller than the sum of its proper divisors (388730928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216230352 is a wasteful number, since it uses less digits than its factorization.

216230352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980 (or 1974 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 216230352 is about 14704.7731026358. The cubic root of 216230352 is about 600.2132131135.

Adding to 216230352 its reverse (253032612), we get a palindrome (469262964).

The spelling of 216230352 in words is "two hundred sixteen million, two hundred thirty thousand, three hundred fifty-two".